2012 TOYOTA PRIUS fuel

564 6-1. Specifications
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the good choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allowscold startability. Oils with a lower value before the W allow for easier
starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when
the oil is at high temperature. An oil with a higher viscosity (one with a
higher value) may be better suited if the vehicle is operated at high
speeds, or under extreme load conditions.
Outside temperature

571
6-1. Specifications
6
Vehicle specifications
Fuel infor mation
■Fuel tank opening fo r unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
You must only use unleaded gasoline in your vehicle.
Select octane rating 87 (Research Octane Number 91) or higher. Use
of unleaded gasoline with an octane rating lower than 87 may result
in engine knocking. Persistent kno cking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications
of ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

572 6-1. Specifications
■Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have devel-
oped a specification for fuel quality called the World-Wide Fuel Charter
(WWFC), which is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emis-
sion levels. In the U.S., category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets,
and improves customer satisfaction through better performance.
■ Recommendation of the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent additives
to avoid the build-up of engine deposits.
● All gasoline sold in the U.S.A. contains detergent additives to clean and/
or keep clean intake systems.
■ Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.

573
6-1. Specifications
6
Vehicle specifications
■
Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methyl-
cyclopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If
this happens, contact your Toyota dealer for service.
■ If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline
containing more than
10% ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

574 6-1. Specifications
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related poor driveability
If poor driveability is encountered after using a different type of fuel (poor hot
starting, vaporization, engine knocking, etc.), discontinue the use of that type
of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

582 6-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressure The maximum cold inflated
pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended infla-
tion pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

622 Alphabetical index
Floor mats................................. 372
FluidBrake ..................................... 568
Washer .................................. 429
Fog lights
Replacing light bulbs ............. 467
Switch.................................... 256
Wattage ................................. 570
Foot lights................................. 353
Front fog lights Replacing light bulbs ............. 467
Switch.................................... 256
Wattage ................................. 570
Front passenger occupant
classification system ............ 154
Front passenger’s seat belt reminder light......................... 498
Front seats Adjustment ..............................99
Front side marker light
Replacing light bulbs ............. 467
Wattage ................................. 570
Front turn signal lights
Replacing light bulbs ............. 467
Switch.................................... 211
Wattage ................................. 570
Fuel Capacity ................................ 562
Fuel gauge ............................ 214
Information ............................ 571
Refueling ............................... 131
Type ...................................... 571
Fuel door................................... 131
Fuel filler door .......................... 131
Fuses......................................... 456 Garage door opener ................ 380
Gauges...................................... 214
Glove boxes ............................. 358
Hands-free system
(for cellular phone)
*
Hazard lights Switch ................................... 484
Head restraints Adjustment ........................... 105
Headlight cleaner ..................... 265
Headlights Cleaner ................................. 265
Replacing light bulbs ............. 467
Switch ................................... 250
Wattage................................. 570
Heaters Automatic air conditioning system ................................ 326
Seat heaters.......................... 369
Side mirrors........................... 346
Hill-start assist control ............ 301
Hood.......................................... 413
Hooks Cargo .................................... 374
Horn .......................................... 213
Hybrid system Eco savings record ................. 53
Emergency shut off system..... 37
Energy monitor/consumption screen ............. 42
High voltage components ....... 36
Hybrid System Indicator ........ 225
Ignition switch ....................... 192
Monthly fuel consumption record .............. 53
“POWER” switch ................... 192
FG
H

624 Alphabetical index
MaintenanceDo-it-yourself
maintenance ....................... 410
General maintenance ............ 405
Maintenance data.................. 560
Maintenance requirements.... 402
Maintenance data ..................... 403
Meter Instrument panel light control ................................. 217
Meters ................................... 214
Speed unit select button........ 216
Trip information display ......... 229
Micro dust and pollen filter ..... 330
Microphone
*............................ 388
Mirrors Inside rear view mirror........... 118
Side mirror heater ................. 346
Side mirrors ........................... 121
Vanity mirrors ........................ 365
MP3 disc
*
Multi-information display ........ 223
Navigation system (refer to “Navigation
System Owner’s Manual”)
Noise from under vehicle ..........22
Odometer .................................. 214
Oil Engine oil .............................. 420
Opener Back door ................................93
Fuel filler door ....................... 131
Hood...................................... 413
Outside rear view mirrors
Adjusting and folding ............. 121
Outside rear view mirror defogger switch ..................... 346 Outside temperature
display .................................... 366
Overheating .............................. 549
Parking brake ........................... 212
Parking lights Switch ................................... 250
PCS ........................................... 303
Personal lights Switch ................................... 355
Wattage................................. 570
Power outlets ........................... 367
“POWER” switch ..................... 192
Power windows ........................ 123
Pre-collision system ................ 303
Radar cruise control system .................................... 270
Radiator .................................... 426
Radio
*
Radio data system*
RDS*
Rear seats Adjustment ............................ 102
Folding down......................... 103
Rear turn signal lights Replacing light bulbs ............. 467
Wattage................................. 570
Rear view mirror .............. 118, 121
Rear view monitor system
*
Rear window and outside rear view mirror
defoggers ............................... 346
Rear window wiper and washer .................................... 262
Remote Air C onditioning
System.................................... 342
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